if I were you moth3r, I would do what mebejedi has done and capture slightly black higher, white lower and post process. the reason being is that the light and colour values on the LD's are not consistent so there are some scenes where you will lose detail as whites get blown and blacks are too black.

I did what you did (ie capture pure blacks etc) and have overblown whites in the tantive sequence. the section where vader and the officer are walking down the corridor saying, she'll die before she'll tell you anything, leave that to me etc, around frame 12000. the white corridor totally blows out in the background on my capture and loses all the detail, it also hurts the eyes too.

if you capture mebejedi style, then you have total source control and can adjust individual scenes if you have too. it will make for a better capture.